Output Connection; Remote Sense Connection - Delta A1500 Series User Manual

User Manual
A1500
AC Power Source

2.4 Output Connection

2.4.1 Output connection
The output terminal block is located at the rear of the AC source. Load connecting to the
"N" and "L" is done at the output terminals. To meet the safety requirements, the safety
cover must be fasten. The wires to the load must be sufficiently large gauges, so they will
not overheat while carrying the output current. Please see Figure 2.5.1 on the next page.
For most users, if the current for product under test is not high, there is one outlet with 10
amperes rating at front panel can be used.

2.5 Remote Sense Connection

The AC source remote sense function monitors the load terminal voltage instead of the AC
source output terminal. It ensures the delivery of accurate voltage as programmed at the
load by compensating the output voltage drop over the connecting cable automatically. You
have to set Remote Sense ON so as to enable this function.
Connect the sensing wires from"Ls"and"Ns"terminals to the load as shown in Figure
2.5.1. As the sensing wires carry only a few milli- amperes, the wire gauges are much
smaller than the load cables. The sensing wires are part of the feedback path of the AC
source. They must be kept at a low resistance in order to maintain the best performance.
Connect the sensing wires carefully so that they will not be open-circuited. If the sensing
wires are left unconnected or become open-circuited during operation, the AC source will
disable the output. The sensing wires must be a twisted pair to minimize the pickup of
external noise. The sensing wires need to be connected as close to the load input terminal
as possible.
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Figure 2.5.1 DE-ACS1152B X